package src.数据结构.栈;

public class Main {
    public static void main(String[] args) {
        Stack<String> stack = new Stack<>();
        stack.push("java");
        stack.push("python");
        stack.push("mysql");
        System.out.println(stack.size());
        stack.show();
        System.out.println(stack.isEmpty());
        System.out.println(stack.pop());
//        System.out.println(1+"+"+1);

    }
}
